Is there a secret message embedded in the 3DS keyscrambler constant?

What is the PDN abbreviation?

Power distribution network

How does Nintendo reflash bricked systems?

Background: The boot ROM will boot from SPI flash if the FIRM partitions are both corrupt. But if, say, Home Menu gets deleted, the system is dead, and boot ROM would still see the NAND as valid. How does Nintendo's refurbishing center reflash such systems?

Software

What was the problem in "initial program loader" that was mentioned in an FCC filing by Nintendo for 2DS?

What did SVC 0x74 in the ARM11 kernel do before it got stubbed?

What is the PTM abbreviation?

Why is the DTCM not used anywhere except bootrom?

Background: Bootrom is known to use part of DTCM as state, memsetting it to 0 when it's done. After that, it is never used again.

How is CTRAging launched during factory setup?

Background: No TestMenu version is capable of launching CTRAging directly: O3DS factory TestMenu can only launch DevMenu installed on NAND, the inserted cartridge and the TWL/AGB test apps; N3DS factory TestMenu can only launch DevMenu installed on NAND, the inserted cartridge and System Settings.